TW200732312A - Method for sulfonation of 1,2-benzisoxazole-3-acetic acid - Google Patents

Method for sulfonation of 1,2-benzisoxazole-3-acetic acid

Info

Publication number
TW200732312A
TW200732312A TW095134102A TW95134102A TW200732312A TW 200732312 A TW200732312 A TW 200732312A TW 095134102 A TW095134102 A TW 095134102A TW 95134102 A TW95134102 A TW 95134102A TW 200732312 A TW200732312 A TW 200732312A
Authority
TW
Taiwan
Prior art keywords
benzisoxazole
acetic acid
sulfonation
acid
nitrile
Prior art date
Application number
TW095134102A
Other languages
Chinese (zh)
Inventor
Tsutomu Ishikura
Nobuhiko Horiuchi
Original Assignee
Dainippon Sumitomo Pharma Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dainippon Sumitomo Pharma Co filed Critical Dainippon Sumitomo Pharma Co
Publication of TW200732312A publication Critical patent/TW200732312A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D261/00—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings
    • C07D261/20—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings condensed with carbocyclic rings or ring systems

Abstract

A method for efficiently preparing 1,2-benzisoxa2ole-3-methane-sulfonic acid, which comprises reacting 1,2-benzisoxazole-3-acetic acid in toluene with chlorosulfonic acid, which may optionally be mixed with an inert solvent, in the presence of a specific Lewis base(ester or nitrile).
TW095134102A 2005-09-16 2006-09-14 Method for sulfonation of 1,2-benzisoxazole-3-acetic acid TW200732312A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71720705P 2005-09-16 2005-09-16

Publications (1)

Publication Number Publication Date
TW200732312A true TW200732312A (en) 2007-09-01

Family

ID=37865025

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095134102A TW200732312A (en) 2005-09-16 2006-09-14 Method for sulfonation of 1,2-benzisoxazole-3-acetic acid

Country Status (7)

Country Link
EP (1) EP1935888A4 (en)
JP (1) JP5137576B2 (en)
KR (1) KR20080046175A (en)
CN (1) CN101263128B (en)
IL (1) IL189767A0 (en)
TW (1) TW200732312A (en)
WO (1) WO2007032441A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6033114B2 (en) * 1976-12-16 1985-08-01 大日本製薬株式会社 1,2-benzisoxazole derivative
US4172896A (en) * 1978-06-05 1979-10-30 Dainippon Pharmaceutical Co., Ltd. Methane-sulfonamide derivatives, the preparation thereof and composition comprising the same
US6841683B2 (en) * 2001-08-30 2005-01-11 Teva Pharmaceutical Industries Ltd. Sulfonation method for zonisamide intermediate in zonisamide synthesis and their novel crystal forms
US7015330B2 (en) * 2001-08-30 2006-03-21 Teva Pharmaceutical Industries Ltd. Sulfonation method for zonisamide intermediate in zonisamide synthesis and their novel crystal forms
CA2458905A1 (en) * 2001-08-30 2003-03-13 Teva Pharmaceutical Industries Ltd. Zonisamide intermediate and synthesis
BR0318576A (en) * 2003-11-11 2006-10-10 Wockhardt Ltd Process for the manufacture of 1,2-benzisoxazole-3-methanesulfonamide

Also Published As

Publication number Publication date
JP5137576B2 (en) 2013-02-06
WO2007032441A1 (en) 2007-03-22
JPWO2007032441A1 (en) 2009-03-19
IL189767A0 (en) 2008-08-07
EP1935888A1 (en) 2008-06-25
CN101263128B (en) 2011-02-16
CN101263128A (en) 2008-09-10
KR20080046175A (en) 2008-05-26
EP1935888A4 (en) 2011-07-13

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